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QML Keyboard for touch screen

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  • R Offline
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    rotoZOOM
    wrote on last edited by
    #17

    rodrigob, I've made a simple virtual keyboard for touchscreen displays.
    There are also some example to use it with Qt.
    https://projects.developer.nokia.com/vk

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      aabc
      wrote on last edited by
      #18

      How do you delete letters with this keyboard ?

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      • R Offline
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        rotoZOOM
        wrote on last edited by
        #19

        There is exists Backspace key on the top/right corner.

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        • A Offline
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          aabc
          wrote on last edited by
          #20

          And you just do text += <the backspace code> ?

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          • R Offline
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            rotoZOOM
            wrote on last edited by
            #21

            No. This is just UI. It sends signal which of key is pressed.
            In case of backspace pressed it sends sigButtonPressed ('backspace').
            Your application should handle it.
            You can see it from my example.

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              aabc
              wrote on last edited by
              #22

              Can I use it with QML TextInput ?

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                rotoZOOM
                wrote on last edited by
                #23

                Yes. You can manual handle sigButtonPressed and in case of button=='backspace' remove character just before cursorPosition of the TextInput.

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                  aabc
                  wrote on last edited by
                  #24

                  Isnt there is something more generic that use sendEvent(QKeyEvent) that simulate the real Keyboard ?

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                    rotoZOOM
                    wrote on last edited by
                    #25

                    In my example I do
                    QCoreApplication::postEvent(_target, key_event_press);
                    QCoreApplication::postEvent(_target, key_event_release);

                    that, I believe, emulate click on to the key.

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                      aabc
                      wrote on last edited by
                      #26

                      What is the _target ? Is it the TextInput ?

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                        rotoZOOM
                        wrote on last edited by
                        #27

                        It is QWidget object, that setted by client and accept QKeyEvent

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                          aabc
                          wrote on last edited by
                          #28

                          Did you try it with a QML Item ?

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                            rotoZOOM
                            wrote on last edited by
                            #29

                            No, I didn't. What's difference between QML Item and QWidget*?
                            If you can obtain QTextInput QWidget pointer (and you can), than it'll be work.

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                              aabc
                              wrote on last edited by
                              #30

                              I try it and it din't work

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                                rotoZOOM
                                wrote on last edited by
                                #31

                                Ok, as soon as I have time I'll check it.

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                                  aabc
                                  wrote on last edited by
                                  #32

                                  Thanks.
                                  I'll wait

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                                    pritamghanghas
                                    wrote on last edited by
                                    #33

                                    you can also try maliit. Its a full framework for input methods. Has virtual keyboards also. I think they have QML keyboards as well now.

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                                      aabc
                                      wrote on last edited by
                                      #34

                                      What is maliit ?

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                                        pritamghanghas
                                        wrote on last edited by
                                        #35

                                        see here https://wiki.maliit.org/Main_Page

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                                          mlvljr
                                          wrote on last edited by
                                          #36

                                          For sending emulated events to QML items, see http://qt-project.org/forums/viewthread/17360/

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